Transload device



A. E. BR|CKMAN x-:T AL 2,482,836

TRANsLoAD DEVICE sept. 27, 1949.

Filed Sept. 28, 1945 2 Sheets-Sheet l Sept' 27, 1949 A. E. BRICKMAN ET Al. 2,482,836

TRANSLOAD DEVICE Filed Sept. 28, 1945 2 Sheets-Sheet 2 INVENTRSZ #mA/[ EWCA/M4N ma Myea/v E. (4PM/CH,

Patented Sept. 27, 1949 UNITED STATES PATENT OFFICEL n 2,482,886 TRANsLoAD YDEVICE Alan E. Brickman, New Haven, Conn., and Myron E. Capouch, Lakewood, Ohio, assignors to The American Steel and Wire Company of New Jersey, a corporation of New Jersey Application September 28, 1945, Serial No. 619,158

10 Claims. 1

This invention relates to a transload device and particularly to such a device for use in an expansion or contraction joint for concrete highways. Various types of transload devices for expansion and contraction joints are in use, but they have various disadvantages, a large part of which are due to diiiiculties arising in assembling the unit preparatory to pouring the concrete.

It is an object of our invention to provide a transload device for an expansion and contraction joint having means for facilitating assembly of its part.

This and other objects will be more apparent after referring to the following specification and attached drawings, in which:

Figure 1 is an assembled view partly in cross section of the transload device;

Figure 2 is an elevation of the cam support;

Figure 3 is a side elevation of Figure 2;

Figure 4 is a top plan view of the dowel socket;

Figure 5 is a side elevation of the dowel socket of Figure 4;

Figure 6 is a rear view of the dowel socket of Figure 4; Y

Figure 7 is an elevation of the expansion joint iiller; n

, Figure 8 is a View similar to Figure 1, but showing the invention applied to a contraction joint; and

Figure 9 is a side elevation of the cam support reference numeral 2 indicates thersubgrade on which the concrete slabs 4 and 6 rest. Between the slabs 4 and 6 is an expansion joint 8 having a filler I0 which extends substantially the length of the joint. In the case of a road the joint is used as a transverse joint extending the width of the road and the transload device transfers the load from one slab to the next. Resting on the subgrade 2 is an inverted T-shaped support I2 which is formed of a plate bent to form a base I4 and an upright I6 with an opening I8 therein. Fastened to both sides of the upright I6 are spaced apart cam lips 20 and 22. The top cam lip 20 has a downwardly extending ange at each end and the bottom .cam lip 22 has similar upwardly extending flanges. The flanges at one side of the upright form cam surfaces 24 and the flanges on the other side form similar cam surwardly extending bearing'surfaces 46 on each side thereof. Flanges 42 extend outwardly from the top and bottom of the barrel portion, and each is provided with a cam surface 44, which cooperate with the cam surfaces 24 and 26 to hold the dowel sockets in place.

In assembling the transload unit, the support I2 is placed on subgrade 2 with the ller I6 supported on the base I4 and extending along the upright I6. A dowel socket 32 is positioned against the upright I6 on the side opposite the ller with the flanges 42 in a horizontal position. The socket is then turned to move the cam surfaces 44 into contact with cam surfaces 26 to lock the socket in place. In like manner, a second socket 32 is positioned against the filler I0 and wedged in place by means of the cam surfaces 24 and 44. A dowel pin 38 is placed in the openings I8 and 36 and a socket plug 46 of Yexpansible material is placed at each end of the dowel. A number of transload units are assembled in similar manner along the length of the joint, it being understood that the joint filler I0 is provided with spaced apart holes 48 to permit passage of the dowel pin 38 andopenings 50 and 52 to permit passage of the cam lips 20 and 22. The concrete slabs 4 and 6 are then poured.

The transload device may also be used in a contraction joint as shown in Figures 8 and 9. The contraction joint differs from an expansion joint in that no ller member is used and a transload device I 2 is embedded directly within the concrete Witha notched portion 6i] being formed in the top face of the concrete directly above the transload elements. If undue stresses are applied to the concrete, such as by overloading or if excessive contraction and expansion takes place, the concrete will relieve these stresses by cracking at the point where the recesses were made, thus forming two sparate slabs which are then reinforced by the Ypresence of the transload device. The only difference between the transload device used with the contraction joint and that used with the expansion joint is that the cam lips will extend the same distance from each side of the upright I6 since no ller is used, This is best shown in Figure 9 where it is seen that the cam lips 20' and 22 extend the same distance from each side of the upright I6. The joint is otherwise the same as the expansion joint and the same reference characters are used to indicate corresponding parts. In some instances the cam s-urfaces on one side of upright I6 are emitted and al1 of the cam action is done by. means of the cam surfaces on one side only.

each side of the plate member, said ller having openings therein for passage of the cam'lips on that side of the plate member adjacent the ller, a cam surface facing said plate member on each cam lip, a dowel socket on each side of the filler and plate member assembly, each of said sockets having an axial opening therein, cam faced anges on the inner end of each socket engaging the ladjacent cam/surfaces on the cam lips vto lock the socket in place between said plate member and cam surfaces, and a dowel pin in the openings in said sockets extending through the axial holes in said filler and plate member.

2. A transload device for expansion joints between slabs comprising a single vertical plate member, a ller extending along said vertical plate member, said filler and plate member having coaxial holes therethrough, a plurality of spaced apart cam lips extending outwardly from each side of the plate member, said filler having openings therein for passage of the cam lipsv on that side of the plate member adjacent the ller, a cam surface facing said plate member on each cam lip, a dowel socket on each side of the filler and plate member'assembly, each of said sockets having an axial opening therethrough, earn faced flanges on the inner end of each socket engaging the adjacent cam surface on the vcam lipsto lock the socket in place between said plate member and cam surfaces, a dowelpin in the openings in said sockets extending through the axial holes in therethrough, a pair Yof spaced lapart cam lips extending outwardly from each side of the plate member, said ller having openings therein for passage of the cam lips on the side adjacent the plate member, a cam surface on each cam lip, a dowel socket on each side of the filler and support assembly, each of said sockets having an axial opening therein, a pair of cam faced iianges on the inner end of each socket engaging the adjacent cam surfaces on the cam lips to lock the socket in place between said plate member fand said cam lips, and a dowel pin in the openings of said sockets extendingthrough the v*axial holes in said ller and vertical member.

4. A transload 'device for expansion joints between slabs `comprising a support havingxan in- `verted T-shaped transverse section, saidsupport having a vsingle vertical plate member, a filler supported on the base of the supportand extending along the vertical plate member, said filler and plate member fhaving `'coaxial .-holes :there- 4 through, a pair of spaced apart cam lips extending outwardly from each side of the plate member, said filler having openings therein for passage of the cam lips on the side adjacent the plate member, a cam surface on each cam lip, a dowel socket on each side of the filler and support assembly, each of said sockets having an axial opening therethrough, a pair of cam faced anges on the inner end of each socket engaging the 'adjacent cam surfaces on the cam lips to lock the socket in place between said plate member and said cam lips, a dowel pin in the openings of said sockets extending through the axial holes in said filler and vertical member, an expansible plug in the socket openings at each end of the dowel pin, and horizontal bearing surfaces extending from said socket.

5. A transload device for transferring loads between adjacent slabs comprising a single vertical plate member, said plate member having a hole therethrough, a plurality of cam lips extending outwardly from each side of theplate member, a cam surface on each of said cam lips, a dowel socket on each side of the plate member, of said sockets Yhaving an axial opening therein, a plurality of cam faced flangesv on `the inner end of each socket engaging theA adjacent cam surfaces on the plate member to lock the sccket in place between the cam lips and the plate member, anda dowelpin in the openings of said sockets extending through the opening ofi-said vertical member.

6. A transload device for transferring loads between adjacent slabs comprising a single vertical plate member, said plate member having a hole therethrough, a plurality of cam lips extending outwardly from each -side of theplate member, a cam surface on each of said cam lips, a dowel socket on each side of the plate member, each of said sockets having `an axial opening therethrough, a plurality of cam faced flan-ges on the inner end of each socket engaging the adjacent cam surfaces on the plate mem-ber toy lock the socket in place between the cam lips and the plate member, a dowel pin in the openings `of 'said sockets extending through the opening of Asaid vertical member, an expansible plug inthe socket openings at each end of the dowel pin, and herizontal bearing surfaces extending from Vsaid socket.

7. A transload device for transferring loads between adjacent slabs comprising a Support yhaving an inverted T-shaped transverse section, `said support having a single vertical leg., Asaid vertical leg having a hole therethrough, a pair of spaced apart cam lips on each side of the vertical mem'- ber, a cam surface on each cam lip, adowel socket on each side of the vertical member, .eachof .said sockets having an axial opening therein, a pair of cam faced flanges on the inner `end of each socket engaging the adjacent cam surfaces -on the vertical member to lock the socket-inyplace between the cam lips and the vertical member, and a dowel pin in the `openings Aof .said sockets extending through the opening in said support.

8. A transload device for transferring loads between adjacent slabs comprising a support having an inverted T-shaped transverse se-ction, said support having a single 4vertical leg, said vertical leg having a hole therethrough, a .pairlof .spaced apart cam ylips on yeach sideiof Ythe vertical member, a cam surface on each cam lip, adowel socket on each side of the vertical member, eachfof said sockets having an axial opening therethrough, "a pair of cam facedriangesionthe:innerfendof each socket engaging the adjacent cam surfaces on the vertical member to lock the socket in place between the cam lips and the vertical member, a dowel pin in the openings of said sockets extend* ing through the opening in said support, an expansible plug in the socket openings at each end of the dowel pin, and horizontal bearing surfaces extending from said socket.

9. A transload device for expansion joints between slabs comprising a single vertical plate member, a filler extending along said vertical plate member, said ller and plate member having coaxial holes therethrough, a dowel socket on one side of the ller and plate member assembly, said socket having an axial opening therein, means for fastening the socket to the plate member, said means including a plurality of spaced apart cam lips extending outwardly from one side of the plate member, a cam surface on each of said cam' lips, cam faced flanges on the inner end of said socket engaging the adjacent cam surfaces to lock the socket in place between said plate member and said cam lips, and a dowel pin in the opening of said socket extending through the hole in said ller and plate member.

10. A transload device for transferring loads between adjacent slabs comprising a single vertical plate member, said plate member having a hole therethrough, a dowel socket on one side of the plate member, said socket having an axial opening therein, means for fastening the socket to the plate member, said means including a plurality of spaced apart cam' lips extending out- Wardly from one side of the plate member, a cam surface on each of said cam lips, cam faced flanges on the inner end of said socket engaging the adjacent cam surfaces to lock the socket in place between said plate member and said cam lips, and a dowel pin in the opening of said socket extending through the hole in said plate member.

Y ALAN E. BRICKMAN.

MYRON E. CAPOUCH.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS? Number Name Date 2,096,702 Yeoman Oct. 19, 1937 2,162,467 Brickman et al. June 13, 1939 2,197,786 Capouch Apr.'23, 1940 2,203,078 Carter June 4, 1940 2,410,099 Olmsted Oct. 29, 1946 

